Decision regret

I've been having some bad anxiety around cutting contact with someone. It's been about a month since we stopped talking and I've been wanting to reach out again.

During the time we talked I got attached, but thing's weren't growing as quickly for her. We talked about being friends for a while, and during that time the time between her replies got longer and longer, which spiked my anxiety and resurfaced a lot of issues.

Half of me wants to sit with my decision, because I might feel like a lack of self respect/cause trouble for her. The other half took the time apart and used it to realize all of the things I was doing wrong/what my issues were.

I still don't think I'm mentally healthy enough yet to talk to them again, I'm afraid that I'd feed into the issues and cause trouble for the both of us. But I do miss just talking to them.